<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>鼠标指针经过时背景变色</title>
    <style>
        table{
            width: 100%;
            border-collapse: collapse;
        }
        td{
            border: 1px solid #ccc;
            padding: 10px;
        }
        tr:hover{
            background-color: aquamarine;
        }
    </style>
    <script>
        $(document).ready(function(){
            $("table tr").hover(
                function(){
                    $(this).addClass("hover-row");
                },function(){
                    $(this).removeClass("hover-row");
                }
            );
        });
        
    </script>
</head>
<body>
    <table id="myTable">
        <tr>
            <th>编号</th>
            <th>商品名称</th>
            <th>单价</th>
            <th>数量</th>
            <th>小计</th>

        </tr>
            <td>01</td>
            <td>牛仔外套</td>
            <td>99元</td>
            <td>1</td>
            <td>99元</td>
        </tr>
        <tr>
            <td>02</td>
            <td>帽子</td>
            <td>25元</td>
            <td>2</td>
            <td>50元</td>
        </tr>
        <tr>
            <td>03</td>
            <td>双肩包</td>
            <td>100元</td>
            <td>1</td>
            <td>100元</td>
        </tr>
    </table>
    
</body>
</html>